*{
	margin:0;
	padding: 0;
}
#tab li{
	float: left;
	list-style: none;
	width: 80px;
	height: 40px;
	line-height: 40px;
	cursor: pointer;
	text-align: center;
}
#container{
	position: relative;
}
#content1,#content2,#content3,#content4{
	width: 300px;
	height: 100px;
	padding:30px;
	position: absolute;
	top: 40px;
	left: 0;
}
#tab1,#content1{
	background-color: #ffcc00;
}
#tab2,#content2{
	background-color: #ff00cc;
}
#tab3,#content3{
	background-color: #00ccff;
}
#tab3,#content4{
	background-color: #00ccff;
}